This place is amazing! The sea is clear and shallow. The beach more or less closes around 6pm but during the day you can do all sorts of water activities plus parasailing and helicopter rides. There are beautiful seaside restaurants with scenic spots for photos such as Seasea's. Fresh fruit, ice cream, and souvenirs can be bought along the beach too. At night, there is live music at Baile Bar. Try the fish and chips at this restaurant! It is delicious. Seasea's also had lively music at night. I love the vibe at Dadonghai! I stayed in Dadonghai, Sanya during the National Days holiday week.